LT1617ES5-1#TRMPBF

Overview

The LT1617ES5-1#TRMPBF is a Cuk topology switching regulator manufactured by Analog Devices Inc., housed in a TSOT-23-5 surface-mount package. It provides a single adjustable negative output voltage ranging from -1.2V to -34V with a maximum switch current of 300mA. The device operates from an input voltage range of 1.2V to 15V and functions within a temperature range of 0°C to 70°C.

Feature Summary

• Implements Cuk topology for continuous input and output current operation
• Capable of generating negative voltages from positive inputs via buck/boost inversion
• Features adjustable output voltage control using external components

Applications

• Negative bias generation for operational amplifier circuits
• Power supply stages requiring isolated negative rails
• Portable systems needing efficient step-up/down conversion to negative levels

Procurement Notes

Verify the specific suffix #TRMPBF indicates tape and reel packaging upon ordering. Confirm the ES5 grade meets the required commercial temperature range specifications. Ensure compatibility with the TSOT-23-5 footprint during PCB layout review.

Selection Notes

Select this component when a negative output voltage is required from a positive source without using inverting charge pumps. The Cuk topology suits applications demanding low input ripple. Verify that the 300mA switch current rating satisfies the load requirements.

Part Context

This part belongs to the LT1617 family of micropower switching regulators designed for space-constrained applications. It utilizes the TSOT-23-5 package to minimize board area while maintaining efficiency in DC-DC conversion tasks requiring negative polarity outputs.

Replacement Considerations

LT1617ES5#TRMPBF serves as the standard positive-output variant within the same package and family.